422 



Aizoaceae; Portulacaceae; Caryophyllaceae 



eral, in axillary fascicles, tJie pedicels 2-5 mm. long, the sepals 

 oblong, obtuse or rounded, 1.5-2 mm. long, 3-nerved; capsules 

 ovoid-ellipsoid, about 3 mm. long; seeds yellow-brown, lus- 



trous, reniform-orbicular, about 0.3 mm. across, with few 

 raised concentric lines. July-Aug. Naturalized in our area. 



Fam. 83. PORTULACACEAE Suberi-hiyu Ka Purselane Family 



Often fleshy herbs or small shrubs, glabrous to long-pubescent; leaves alternate or opposite, entire, the stipules scarious or 

 sometimes changing to a tuft of hairs or absent; flowers solitary, racemose or paniculate, actinomorphic, bisexual; sepals usually 

 2, rarely 5, free or adnate to the base of the ovary, imbricate in bud; petals 4-5, rarely many, inferior or perigynous, free or 

 connate below, imbricate in bud; stamens as many as the petals, sometimes fewer or more; ovary 1-locular; styles 2-8, connate 

 below; ovules 2 to many, amphitropous, or basal on a free-central placenta; capsules membranous or crustaceous, with as many 

 valves as the styles, circumscissile or rarely indehiscent; seeds many, small, rarely 1 or 2, sometimes strophiolate, the testa crusta- 

 ceous, the embryo curved. ^About 16 genera with about 500 species, mainly in S. America, Australia, and S. Africa, a few in 



the N. Hemisphere. 



lA. Ovary partially united with the calyx; capsules circumscissile 1. Portulaca 



IB. Ovary free from the calyx; capsules longitudinally dehiscent 2. Montia 



1. PORTULACA L. 



SUBERI-J 



ZOKU 



Diffuse to ascending, glabrous or rarely pilose herbs; leaves simple; flowers terminal, the sepals 2, connate below and adnate 

 partially to the ovary, the petals 4 or 5, sometimes many; stamens 7-20, inserted on the sepals; ovary many-ovuled, partially united 

 with the calyx; styles deeply 3- to 8-fid; capsules circumscissile, membranous. — About 20 species, mainly in America, a few in the 

 Tropics. 



1. Portulaca oleracea L. Suberi-hiyu. Fleshy gla- 

 brous annual; stems decumbent to ascending, much branched, 

 terete, 10-30 cm. long, reddish brown; leaves alternate, fascicu- 

 late, cuneate-obovate, 15-25 mm. long, 5-15 mm. wide, 

 rounded at apex, short-petiolate, flat; flowers sessile, yellow; 

 sepals 2, keeled on back; petals obovate, retuse, about 4 mm. 



long; stamens 7-12; seeds obliquely globose, about 0.5 mm. 



across, black, sparsely mbercled toward margin. July-Sept. 



Waste ground and cultivated fields in lowlands and foothills; 

 Hokkaido, Honshu, Shikoku, Kyushu; common. Cosmo- 

 politan. 



2. MONTIA L. NUMA-HAKOBE ZoKU 



Delicate glabrous annual; leaves opposite, slightly fleshy; flowers very small, solitary or in few-flowered racemes; sepals 2, 

 ovate-orbicular, herbaceous, persistent; petals 3-5, slightly connate below; stamens 3-5, inserted near base of the petals; ovary 



free, 3-ovuled; styles 3-fid; capsules globose, 3-valved, longitudinally dehiscent; seeds suborbicular, nearly flat. About 5 species, 



in the cold regions of both hemispheres. 



1. Montia lamprosperma Cham. M. jontana var. lam- 

 prosperma (Cham.) Fenzl; M. fontana sensu auct. Japon., non 



L.; M. rivularis sensu auct. Japon., non Gmel. Numa-ha- 



KOBE. Stems 3-8 cm. long, decumbent at base; leaves op- 

 posite, spathulate-oblanceolate to narrowly obovate, 5-10 mm. 

 long, 1.5-4 mm. wide, obtuse, narrowed below and petiolelike; 

 flowers 2 or 3, terminal, the pedicels 3-10 mm. long, the bracts 

 very small, membranous; sepals 2, orbicular, about 1 mm. 



long; petals 5, small, slightly unequal; capsules globose, 2- to 

 3-seeded; style very short; seeds obovate-orbicular, slightly 

 flattened, black, sUghtly lustrous, about 1.2 mm. across, nearly 



smooth, superficial cells slightly impressed on margin. 



June- Aug. Wet places along rivulets in mountains; Hok- 

 kaido, Honshu (Nikko) . Europe, Asia, N. America, Africa, 



and New Zealand. 



Fam. 84. CARYOPHYLLACEAE Nadeshiko Ka Chickweed Family 



Herbs, rarely shrubby below, branches often thickened and jointed at the nodes; leaves opposite, gradually reduced to small 

 bracts above, entire, nerveless or 1- to 3-nerved, usually shordy connate at the nodes, sometimes with scarious or bristly stipules; 

 flowers bisexual, rarely unisexual, sometimes partially cleistogamous, solitary or cymose or in panicles, actinomorphic; sepals 

 4-5 (-7), persistent, free or connate below into a tube, imbricate in bud; petals as many as the sepals or absent, entire or lobed; 

 stamens 4-10, rarely fewer, receptacle (gynophore) sometimes prominent; ovary 1-locular, rarely imperfectly 2- to 5-locular 

 at the base, the ovules 2 to many, inserted at base or on the free-central placenta; styles 2-5; capsules dehiscing loculicidally and/ 

 or septicidally with as many valves or twice die number of the styles, rarely indehiscent; seeds many, rarely 1 ; endosperm mealy. 

 About 80 genera, with about 2,000 species, cosmopolitan. 



lA. Sepals free. 

 2A. Stipules present. 



3A. Styles connate at base; stipules of few bristles 1. Drymaria 



